Nitrogen is a gas, it is found in the atmosphere. many chemicals contain it.
Carbon and nitrogen are chemical elements.
Nitrogen
nitrogen
Nitrogen,Oxygen,carbon dioxide
Nitrogen by itself is an Elemental Chemical. It is made of only ONE type of Atom.
Nitrogen fixation can become greener if the natural chemicals are used in the plants.
by the combinement and combitnation of other chemicals which make it fuzz frizz or foam
carbon nitrogen and oxygen
Carbon, oxygen and nitrogen.
Run-Off
calcium and nitrogen
Aminoacids and proteins